Controller-regulator.



J. Y. PORTER. UONTROLLER REGULATOR.

APPLIOATION FILED MAY 2a, 1914.

. 1,132,525, V Patented Mar. 16, 1915.

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J. Y, PORTER.

' CONTROLLER REGULATOR.

APPLICATION FIL'ED MAY 23, 1914.

' 1,132,525. v Patented Ma.r 16,1915.

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JOSEPH Y. PORTER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO CHARLESV.

HETTS, 0F DETROIT, MICHIGAN.

CONTROLLEIVBEGULATOR.

Specification of Letters Patent.v

Application filed May 23, 1914. Serial No. 840,647.

To all whom 'it may concern Be it known that I, JOSEPH Y. PORTER, acitizen of the United States, residing at Detroit, county of Wayne,State of Michigan, have invented a certain new and useful Improvement inController-Regulators, and declare the following to be a full, clear,and exact description of the same, such as will enable others skilled inthe art to which it pertains to make and use the same, reference beinghad to the accompanying drawings, which form a part of thisspecification.

This-invention relates to controller regulators and has for its object adevice of this description which comprises vertically and oppositelydisposed stationary rows of teeth into one row of which a catch istemporarily thrown when the movement exceeds a slow movement. By reasonof the peculiar construction Y of this catch the teeth which throw thecatch into engagement with the opposed teeth are very short,consequently the device is one of minimum thickness so that it can beapplied to conventional forms of controllers above the controllercasing.

Another object of this invention is a controller regulator in which atwo-part catch is used comprising a swinging pawl and an actuatorpivoted to the pawl to swing upon a fixed center as contradistinguishedfrom a plurality of centers, as shown in my previous Patent No. 995,091.

Figure l, is a plan view showing the catch-carrying arm and the baseplate with the trips. Fig. 2, is a vertical section diametricallythrough the controller regulator.

Fig. 3, is a top elevation of the controller regulator. Fig. 4c, is adetail of the base plate (showing the upper face). Fig. 5, is a detailedvertical section through a portion of the housing showing the catch inneutral position. Fig. 6, is a similar view showing the catch set toengage with the stops, and Fig. 7 shows the position of the catch afterthe motion of the controller shaft has been checked and the operator haswithdrawn the force upon the controller handle.

The controller case is designated a. The controller regulator housingcomprises a casting b in the form of a ring provided with lugs c forattachment to the controller case a and an inwardly extending web orannular flange d which thickens near the circular central opening and isalso stepped as at e for the purpose of seating the jawcarrying platev fwhich is a casting thickened at its center to form a hub g which sets inthe central opening of the annular flange (l. The hub and jaw-carryingplate have a central opening and the two are stepped as at h to seat thehead of the tubular screw This screw connectsthe j aw-carrier and thehub lc to the catch-carrying arm o. The tubular screw therefore connectsthe jawcarrier and the catch-carrying arm and journals them with respectto the housing. The annular flange or the upper wall of the housing isprovided with a plurality of ratchet teeth or stops Z,steep on one faceand more gently inclined on the other. Opposed to these teethv or vstopsare a plurality of trips or ratchet teeth m. These teeth are set eachslightly in advance of the opposed tooth or stop and are somewhat lowcompared with the height of thestops. These teeth m are integral partsof the base plate n' which is screwed to the housing b.

The catch-carrying arm 0 protrudes radially from the hub le. l Thecatch-carrying arm o is recessed atlone side as shown in Fig. l sothatthe arm in reality, forms a' swing in said slot. When lthe actuator 1'vrides up the inclined face of the trip it lifts the pawl and inasmuch asthe lifting force is applied to the pawl about two-thirds of the wayfrom the end of the pawl to the fulcruIn, .it isevident that a givenamount of lift applied at this point will be accompanied byVapproximately three times the amount of movement ofthe extreme end ofthe pawl. Consequently the teeth or trips m may be made very low whichis of importance for it narrows `the casing so that it will readily t inbetween the end of the ,controller sha-ft and the top of the controllercasing. i

When the actuator strikes the trip and as it rides up the trip theactuator and the pawl remain for all purposes ixed together. In factthey might be so constructed were it not for the diiiiculty encounteredin the return swing of the handle, for it is obvious that the stops andthe trips could lnot be as nearly directly opposite as shown in thedrawings and allow the catch to drag over with any facility. If thetrips more nearly approximated an accurate staggered relation withrespect to the stops, then the pawl could not be tripped by the trip ata point so near the fulcrum. Therefore, not so great a swing of theextreme end cf the pawl could be obtained with a trip of given height.However, with the ractuator free to swing with respect to the pawl theplacing of thetrips practically opposite the stops neither interfereswith the turning of the handle in shutting off, nor does it tend to Wearout the catch. f

The general mode of operation of controller regulators of this type isold so it is readily understood when the actuator drops off the backs ofthe trips the lifting force upon the pawl is withdrawn but usually thecatch is being rotated at suiicient speed so that the inertia of thepawl prevents its dropping before it strikes the stop. When the pawl andthe stop strike each other they remain engaged until the operatorwithdraws the force upon the handle, whereupon the pawl slides freelyaway from the stop` and the handle may be revolved further until theneXt trip and stop are encountered.

The jaw-carrying plate is provided with the usual cylindrical sections swhich terminate at one side in outwardly extending `continuations whichform the jaws t. The usual controller shaft protrudes through thetubular screw z and up above the housing of the controller regulatorsufficient distance for its squared end portion to engagewith thesquared aperture of the head of the controller crank u. It is obviousthat when the controller crank is connected to the shaft by dropping thehub over the square portion and is also dropped between the jaws t thatthe controller shaft and the catch-carrying arm are operativelyconnected.

What I claim is:

1. rlhe combination with a controller casing provided with a rotatablecontroller shaft, of a controller regulator mounted upon the top of thecontroller casing and having in combination a housing comprising a baseplate, a ring as a side inclosure and an annular flange as a topinclosure, stops depending from the annular flange and trips raised uponthe base plate, an oscillating catch thrown into the stops by the trips,and means for connecting the oscillating catch with the controllershaft.

2. The combination with a controller casing, provided with a controllershaft projecting through the top thereof, of a contrcller regulatormounted wholly on the top of the controller casing and having incombination a housing provided with depending stops, and upraised tripsin substantially opposed rows, an oscillating catch thrown into thestops by the upraised trips, and means for connecting the catch with thecontroller shaft.

3. The combination with a controller provided with a casing and acontroller shaft projecting out of said casing, of a controllerregulator mounted wholly upon the top of a controller casing and havingin combination a stationary housing comprising a base plate, astationary ring as a side inclosure and a stationary annular flange as atop inclosure, stops depending from the annular flange and tripsupraised from the base plate, a j aw-carrying plate journaled in the topof the housing, a catch-'carrying arm connected to the jaw-carryingplate, a pair of jaws carried on said jaw-carrying plate, a catchpivoted to the catch-carrying arm and thrown by the trips into temporaryengagement with the stops above, and a handle detachably connectible tothe controller shaft and adapted to lie between the jaws to operativelyconnect the controller shaft with the catch-carrying arm. Q

4l. The combination with a controller provided with a controller casingand a controller shaft projecting through the top thereof, of acontroller regulator mounted wholly upon the top of the controllercasing and having in combination a housing comprising a ring as a sideinclosure, an annular flange as a top inclosure, and a base plateremovably securable to the ring as a bottom inclosure, stops dependingfrom said annular flange, trips raised from the base plate, ajaw-carrying plate journaled in the top of the housing, jaws carriedthereon, a catch-carrying arm located within the housing, a tubularscrew for connecting the jawcarrying arm and the hub of thecatch-carrying arm, a catch adapted to be thrown by the trips intotemporary engagement with the stops and a handle detachably connectiblewith the controller shaft and adapted to rest between the jaws foroperatively connecting the shaft and the catch-carrying arm.

5. A controller regulator, having in combination, downwardly pointingstops, upwardly pointing raised trips, the stops and trips being insubstantially opposed rows, the trips below and the stops above, a catchcomprising a pivoted pawl carrying an actuator, the actuator beinglocated near the fulcrum point of the catch so as to make possible alarge throw of the end of the pawl with a low trip, and means with whichrelative movement can be imparted between the catch on the one hand andthe stops and trips on the other hand.

6. A controller regulator, having in combination, opposed rows of stopsand trips, arranged one row above the other row, a catch comprising apivoted pawl provided with an actuator near its fulcrum point thatengages with the trips to force the pawl into an operative position toengage with the stops, and means with which relative movement can beimparted between the catch on one hand andthe stops and trips on theother hand.

7. A controller regulator, having in combination, opposed rows of stopsand trips, one row being above the other row, a catch pivotallysupported between the two rows and comprising a pawl and an actuatorpivoted to the pawl, and means with which relative movement may beimparted between the catch on one hand and the stops and trips on theother hand.

8. A controller regulator, having in combination, opposed rows of stopsand trips,

the individual stops and trips being set in almost directlv opposedpairs, a catch between the rows of stops and trips, and comprising apawl and an actuator pivoted to the pawl near the fulcrum point of thepawl to magnify the swing of the extreme end of the pawl when engagingthe trips, and

means with which relative movement may be imparted between the catch onone hand and the stops and trips on the other hand.

In testimony whereof, I sign this specification in the presence of twowitnesses.

JOSEPH Y. PORTER. Witnesses: VIRGINIA C. SBRATT, MARIETTA E. RUDD.'

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

